Abstract: An electronic device includes a housing that includes a bottom plate and a standing wall erected over the bottom plate, and a conversion mechanism that includes a first coupler coupled to the standing wall and a second coupler by which the first coupler is coupled to the bottom plate, and configured to convert a tensile force to act on the first coupler toward a side of the standing wall into a pulling force to act on the bottom plate from the second coupler.

Abstract: A heat sink includes: a fixing unit fixed to a heating element; and a heat dissipation unit including a heat dissipation protruding portion and configured to slide with respect to the fixing unit.

Abstract: The removing jig includes a frame member and an arm member. The arm member includes a pair of side plates each provided with an axial hole. The arm member further includes an engagement portion that engages with the lever portion at its tip. The frame member includes a contact portion that contacts with a back surface of the connector body, a pair of side frame plates each provided with a guide groove formed with respect to the axial hole, and a first window portion from which the engagement portion protrudes.

Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.

Abstract: An electronic device includes: a chassis for housing an electronic unit; and a hold member capable of holding to a fan unit blowing air toward the electronic unit and attachable to and detachable from a plurality of positions of the chassis.

Abstract: First and second guiding rails are attached to support member in a mounting unit. The mounting unit is mounted in an enclosure of an electronic apparatus, for example. The second guiding rail at a first position extends straight on the extension of the first guiding rail. The first and second guiding rails serve to assist the insertion of the mounting unit into the enclosure. The second guiding rail at a second position serves to define a window opening with the assistance of the edge of the support member. A supervisor is allowed to insert fingers into the window opening. The second guiding rail functions as a handle. The second guiding rail in this manner serves to assist the carriage of the mounting unit. A space is not required solely for a handle separately from a space for a guiding rail in the mounting unit. The mounting unit is thus allowed to efficiently utilize its inside space.

Abstract: The removing jig includes a frame member and an arm member. The arm member includes a pair of side plates each provided with an axial hole. The arm member further includes an engagement portion that engages with the lever portion at its tip. The frame member includes a contact portion that contacts with a back surface of the connector body, a pair of side frame plates each provided with a guide groove formed with respect to the axial hole, and a first window portion from which the engagement portion protrudes.

Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.

Abstract: An electronic device includes: a chassis for housing an electronic unit; and a hold member capable of holding to a fan unit blowing air toward the electronic unit and attachable to and detachable from a plurality of positions of the chassis.

Abstract: A first printed wiring board extends in the vertical direction within a first duct that extends in the vertical direction. A first axial flow fan generates airflow which absorbs heat from the first printed wiring board. Second and third ducts extends in parallel with the first duct. A fourth duct extends between the second and third ducts. A second printed wiring board extends in the horizontal direction within the fourth duct. A second axial flow fan is connected to the third duct. The second axial flow fan generates airflow which absorbs heat from the second printed wiring board. The electronic apparatus can be reduced in size.

Abstract: A loadable/unloadable adapter for a substrate which can simplify the loading and unloading work of the substrate. A substrate 23 is loaded to an loadable/unloadable adapter 13. The loadable/unloadable adapter 13 is inserted from a window hole 14 of a housing 12. A handle member 26 swings about a supporting axis 25. A projected piece 27 moves in accordance with swinging of the handle member 26. A projected piece 27 causes the loadable/unloadable adapter 13 to move forward on the basis of the so-called principle of a lever. Even when a resistance force works for the forward movement of the loadable/unloadable adapter 13 on the basis of a friction resistance of both front connector 18 and main connector 21 when these connectors are coupled, the forward movement of the loadable/unloadable adapter 13 can be attained only with a comparatively small force.

Abstract: A first printed wiring board extends in the vertical direction within a first duct that extends in the vertical direction. A first axial flow fan generates airflow which absorbs heat from the first printed wiring board. Second and third ducts extends in parallel with the first duct. A fourth duct extends between the second and third ducts. A second printed wiring board extends in the horizontal direction within the fourth duct. A second axial flow fan is connected to the third duct. The second axial flow fan generates airflow which absorbs heat from the second printed wiring board. The electronic apparatus can be reduced in size.

Abstract: A first printed wiring board extends in the vertical direction within a first duct that extends in the vertical direction. A first axial flow fan generates airflow which absorbs heat from the first printed wiring board. Second and third ducts extends in parallel with the first duct. A fourth duct extends between the second and third ducts. A second printed wiring board extends in the horizontal direction within the fourth duct. A second axial flow fan is connected to the third duct. The second axial flow fan generates airflow which absorbs heat from the second printed wiring board. The electronic apparatus can be reduced in size.

Abstract: A second duct is designed to oppose its air outlet to a portion of an air inlet of a first duct in an electronic apparatus. The wall member closes the air inlet of the first duct at a position outside the air outlet of the second duct. An opening is defined in the wall member. The opening enables a connection between the outer space of the second duct and the air inlet of the first duct. Airflow enters the air inlet of the first duct from the air outlet of the second duct as well as from the opening of the wall member, respectively.

Abstract: The enclosure unit allows airflow in a first direction within a hollow space inside a ducts placed in an enclosure. The enclosure unit also allows establishment of a first flow passage surrounded by the inside surface of the enclosure. The first flow passage extends in a second direction intersecting the first direction up to the ducts. Airflow runs in the first flow passage in the second direction. Moreover, the enclosure unit also allows establishment of a second flow passage in the second direction between the ducts. Airflow is allowed to run into the second flow passage from the first flow passage. The airflow runs straight in the second direction in the enclosure.

Abstract: First and second guiding rails are attached to support member in a mounting unit. The mounting unit is mounted in an enclosure of an electronic apparatus, for example. The second guiding rail at a first position extends straight on the extension of the first guiding rail. The first and second guiding rails serve to assist the insertion of the mounting unit into the enclosure. The second guiding rail at a second position serves to define a window opening with the assistance of the edge of the support member. A supervisor is allowed to insert fingers into the window opening. The second guiding rail functions as a handle. The second guiding rail in this manner serves to assist the carriage of the mounting unit. A space is not required solely for a handle separately from a space for a guiding rail in the mounting unit. The mounting unit is thus allowed to efficiently utilize its inside space.

Abstract: A first printed wiring board extends in the vertical direction within a first duct that extends in the vertical direction. A first axial flow fan generates airflow which absorbs heat from the first printed wiring board. Second and third ducts extends in parallel with the first duct. A fourth duct extends between the second and third ducts. A second printed wiring board extends in the horizontal direction within the fourth duct. A second axial flow fan is connected to the third duct. The second axial flow fan generates airflow which absorbs heat from the second printed wiring board. The electronic apparatus can be reduced in size.

Abstract: A second duct is designed to oppose its air outlet to a portion of an air inlet of a first duct in an electronic apparatus. The wall member closes the air inlet of the first duct at a position outside the air outlet of the second duct. An opening is defined in the wall member. The opening enables a connection between the outer space of the second duct and the air inlet of the first duct. Airflow enters the air inlet of the first duct from the air outlet of the second duct as well as from the opening of the wall member, respectively.

Abstract: A loadable/unloadable adapter for a substrate which can simplify the loading and unloading work of the substrate. A substrate 23 is loaded to an loadable/unloadable adapter 13. The loadable/unloadable adapter 13 is inserted from a window hole 14 of a housing 12. A handle member 26 swings about a supporting axis 25. A projected piece 27 moves in accordance with swinging of the handle member 26. A projected piece 27 causes the loadable/unloadable adapter 13 to move forward on the basis of the so-called principle of a lever. Even when a resistance force works for the forward movement of the loadable/unloadable adapter 13 on the basis of a friction resistance of both front connector 18 and main connector 21 when these connectors are coupled, the forward movement of the loadable/unloadable adapter 13 can be attained only with a comparatively small force.

Abstract: An active noise reduction device for reducing the noise produced by cooling fans in a computer. The active noise reduction device comprises a duct mounted on the casing of the computer and having at least one air passage. One end of the passage communicates with the interior of the casing near the cooling fans and the other end is open to the atmosphere. A first microphone is arranged in the duct near the first end opening for detecting noise, and a second microphone is arranged in the duct near the second end opening. A speaker is arranged in the duct near the second opening, and a controller controls the speaker in response to outputs of the first and second microphones for reducing the noise produced in the casing. The speaker makes a sound having a reverse phase to that of the noise produced in the computer and the speaker sound is superimposed on the noise.